Methods · Sympto-Thermal Method
Flynn AM, 1984
Methods · Sympto-Thermal Method
Luh-Hardegg G, 1984
Methods · Billings Ovulation Method
Betts K, 1984
Effectiveness · Typical and Perfect Use
Dorairaj K, 1984
Methods · Billings Ovulation Method
Muzzerall L, 1984
Biomarkers · Cervical Mucus
Ecochard R et al., 1984
Methods · Calendar and Rhythm Methods
Laing JE, 1984
Biomarkers · Cervical Mucus
Billings JJ, 1984
Methods · Sympto-Thermal Method
Klaus H, 1983
Effectiveness · Typical and Perfect Use
Gallagher J, 1983
Methods · Sympto-Thermal Method
Parenteau-carreau S, 1983
Biomarkers · Cervical Mucus
Etchepareborda JJ et al., 1983
Methods · Calendar and Rhythm Methods
Lolarga E, 1983
Methods · Billings Ovulation Method
Bourdillon C, 1982
Methods · Billings Ovulation Method
Brennan JJ et al., 1982
Effectiveness · Typical and Perfect Use
No Authors Listed, 1982
Effectiveness · Typical and Perfect Use
Billings JJ, 1982
Methods · Billings Ovulation Method
Klaus H, 1982
Methods · Billings Ovulation Method
Meier-Vismara E et al., 1982
Methods · Billings Ovulation Method
Connell-Tatum EB, 1981
Methods · Billings Ovulation Method
Hilgers TW et al., 1981
Methods · Billings Ovulation Method
World Health Organization, 1981 · Report
Biomarkers · Basal Body Temperature
Hilgers TW et al., 1981
Effectiveness · Typical and Perfect Use
Billings JJ, 1981
Effectiveness · Typical and Perfect Use
Rice FJ et al., 1981
Methods · Billings Ovulation Method
Bhering MS et al., 1980
Methods · Billings Ovulation Method
Billings JJ, 1980
Biomarkers · Basal Body Temperature
Hilgers TW et al., 1980
Methods · Billings Ovulation Method
Hilgers TW, 1980
Methods · Sympto-Thermal Method
Lanctôt CA, 1979
Methods · Calendar and Rhythm Methods
Curry MT, 1979
Biomarkers · Cervical Mucus
Morishita H et al., 1979
Methods · Billings Ovulation Method
Hilgers TW et al., 1979
Biomarkers · Cervical Mucus
Billings JJ, 1978
Biomarkers · Cervical Mucus
Hilgers TW et al., 1978
Biomarkers · Cervical Mucus
Billings JJ, 1978
Methods · Billings Ovulation Method
Jones M, 1978
Methods · Sympto-Thermal Method
Aguilar N, 1978
Methods · Billings Ovulation Method
Hume K, 1977
Biomarkers · Cervical Mucus
Flynn AM et al., 1976
Effectiveness · Typical and Perfect Use
Dunn HP, 1975
Use and Experience · User Satisfaction
Tolor A et al., 1975
Methods · Billings Ovulation Method
France JT, 1973
Methods · Billings Ovulation Method
Billings JJ, 1972
Use and Experience · Method Teaching
Weissmann MC et al., 1972
Effectiveness · Typical and Perfect Use
Marshall J, 1968
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